Gas heater



J. SEBOLDI.

GAS HEATER.

APPLICATION FILED FEB. I2, 1921.

1,402, 183. Patented Jan. 3,1922.

2 SHEETS-SHEET l.

awua/ntoz J. SEBOLD.

' GAS HEATER.

APPLICATION HLED FEB.I2,192I.

1,462,183, Patented Jan. 3, 1922 2 SHEETS-SHEET 2.

amoemtoz 4 A: Inn 0 JOHN SEBOLID, OE NEWARK, NEW JERSEY.

GAS HEATER.

lpplication filed February 12, 1921.

To all whom it may concern:

Be it known that I, JOHN SEBoLD, a citizen-of the United States, residing'in Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Gas Heaters, of which the following is a specification;

The principal purpose of the present invention is to produce a gas heater having means by which the shape of the flame can be controlled and altered as desired from a relatively low, broad expanse to a high, thin blast, as best suited forthe work it is to do.

Another object is to provide a burner built on lines demonstrated by experience to-pro'duce the best attainable results.

A further purpose is in the provision of means, forming a part of the heater, for conveniently and efliciently supporting various articles used in connection therewith, as Well as sundry work parts, so that the same will receive the heat in an effective manner.

These and other analogous objects, becoming apparent as the description proceeds,

are attained by the novel construction, combination and arrangement of parts and the use -of thermic principles hereinafter de scribed and shown in the annexed drawings, forming an essential part of this disclosure, and in which Figure 1 is a top plan view of a heater made in accordance with the invention.

Figure 2 is a front elevational view of the same,-indicating in broken lines one of its applications. V

Figure 3 is an enlarged fragmentary partial elevational, par'tialsectional view of the burner inlet. V

Figure 4: isa bottom plan view thereof. Figure 5 is a perspective view of the air inlet central element.

F igure'6 is a diagrammatical plan of the heater showing the application of a work support attachment.

Figure '7 is a similar view showing another attachment in the form of an oven or furnace.

Figure 8 is an end viewof the same.

Figure9 is a side elevational view of the upperfpart'of the heater, partially in section and showing it in use as heating a plate.

. Specification of Letters Patent.

Patented Jan. 3, i922. Serial No. 4%,503.

Stated in general terms the invention comprises a relatively heavy base from which rises a number of posts, supporting a cup having a central openingthrough which the heat ascends from a burner tube below.

lhis burner tube is secured centrally of the base, has a gas inlet nipple, and an air mixing chamber thereabove from which the burner tube rises.

Two sets of air inlet passages are provided in the 'mixing chamber, one being below and the other above the gas inlet nozzle andeither set may be used by shifting an enveloping shutter encircling the wall of the mixin chamber and having a support arm slida ly engaging one of the posts. v

Referring now more particularly to the drawings, the numeral 15, designates a circular base of considerable size and weight, made preferably of cast or malleable iron, with a central raised portion 15 having ahub-like projection 16 and three equally spaced bosses 17 arranged in a triangle upon the thickened portions of the base.

These bosses are fitted to have fixedly engaged therein'the lower ends of straight cylindrical posts or rods 18, of which are similarly fixed in like bosses 19'integrally formed upon the convex exterior of a hollow cup 20, so as to firmly support the same and whatever it may contain. j

A circular opening 21 isformed in the bottom of the cup, in register with the proj eotion 16 and the interior of the cup is provided with a plurality of triangularly sectional ribs 22 extending from points near the center opening up to its edge and pass ing over it forming raised narrow projections 23 above its surface.

The base projection 16 is drilled transversely and has securedin the opening thus made a pipe 25 extending horizontally outward and adapted to receive over it a flexible hose (not shown) connecting with a supply of gas in a manner well understood.

The same projection is also drilled and tapped vertically to receive a screw threaded plug 26, its tapered tip 27 extending into the upper ends a mixing chamber 28 its cylindrical wall having two annular rows of perforations and 82, respectively above and below the tip 27, while in the bottom wall is another row of smaller perforations 31, all for the admission of air at atmospheric pressure, see Figs. 3 and 4.

.Gas from the inlet pipe 25 enters the bottom of the intersecting opening and passes upward through a gradually contracted or conical axial passage 33 in the plug 26 into the chamber 28 where it is mixed with air, the'combined gas and air rising from the mixing chamber through the burner tube 34 fixed in it and extending nearly to the bottom of the cup 20, in such .manner that when the issuing gases are ignited the flame enters the opening 21, producing an intense heat within the cup.

The shape of the flame and its intensity depends very considerably upon whether air is admitted through the openings 30 or 32; if the upper row 30 be covered, the flame extends to a greater height and does not tend to spread to the same extent as when the lower row be covered and the upper apertures opened.

These openings are controlled by a cylindrical shutter 35 fitted to slide upon the wall of the chamber 28, so as to fully cover either row of openings 30 or 32 and also partially both rows, at one time if desired.

Formed with the shutter is an arm36 leading to a sleeve 37 slidably engaged on one of the posts, adhering by frictional contact sufliciently to remain in adjustment except when it is desired to move the same in regulating the air inlet.

Extending outwardly from the marginal edge of the cup 20 is a horizontal flat projection 40 containing an enclosed elongated slot 41, while from the edge directly opposite are a pair of projections 42 having between them an open space 43.

These elements furnish means for securing an oblong receptacle 44 over the top of the cup 20, even, muffle or furnace 44, havin a flat bottom edgeresting on the cup an passing over its arched cover 45 is a strap 46, one of its out turned ends being engaged in the slot 41 while the opposite end, provided with lateral projection 47 is entered below the elements 42 holding the device secure.

If preferred one or both of the end walls 48 of the device may be engaged by hinges and held when closed over the roof or cover element 45. (See Figs. 7 and 8.)

Obviously metal straps of varying lengths may be used in connection with the projections for securing articles in position to re ceive heat; however if the articles be fiat and of size compatible with the diameter of the cup 20, as indicated by the disk 52, they may be merely disposed on the projection 23 as shown in Fig. 9.

Attention is called to the broken llnes in Fig. 2, the same representing an ordinary v or smoking, at the same time bringing the articles as near as of combustion. g

Figures 1 and 6 show another simple but eflicient means for supporting'relatively long articles, such for instance as a soldering iron, in proper relation to the source of heat.

possible within the area At a point remote from the projections 40 if and 42, is a single width level surface lug 58 formed with an elongated transverse, barlikehead 59, between which and the margin .of the cup are recesses 60.

A rod or'wire 62 is formed withconvergingly mclined arms 63, their free ends being adapted to engage over the'bar element 59,

while curved extensions 64 pass downward in the recesses 60 and make contact with the exterior of the cup in an obvious manner and it willbe clearly apparent this supported element may be applied or removed in an easy and expeditious manner.

While certain preferred embodiments of this device have been shown and described, it will be understood that changes inthe form, arrangements, proportions, sizes and details thereof may be made without departing from the scopeof the invention as de- I fined in the appended claims.

Having thus described my invention, what I desire to secure by: Letters Patent and claims is V 1. A Bunsen burner having a conical gas inlet, a cylindrical mixing chamber havlng in its cylindrical wall a series of air inlets arranged respectively before and behind the point of gas discharge from said inlet and a perforate wall at one end thereof, and means for adjustably and selectively con trolling either or both series of air inlets in the cylindrical wall of the mixing chzgnber.

2. A burner-comprising a cylindrical mixmg chamber having in its cylindrical wall spaced annular rows of perforations and a perforate wall at one end thereof, a burner tubeleading from said chamber, a gas inlet tip terminating at a pointwithin said chamber midway between the rows of perforations, and ashutter controlling the air passages in either row of perforations in the cylindrical wall of the mixing chamber.

3. A burner comprising a cylindrical mixing chamber having a burner tube at one end and a perforate wall at the other, there being two spaced annular rows of perforations in the circular Walls of the chamber, a gas inlet having a conical passage terminating in a tip midway between the mentioned rows of perforations, a shutter slidable over said chamber adapted to close either row of perforations in the cylindrical wall of the mixing chamber partially or wholly, and means for holding said shutter in adjustment.

This specification signed and witnessed this tenth day of February, 1921.

JOHN SEBOLD. Witnesses:

FREDK C. FISCHER, F. NoLL. 

